Mastering Python: Annotations, Errors and Environment

Mastering Python: Annotations, Errors and Environment

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1. Annotations

Let's consider annotations. Annotations are used in our code to make it more understandable for other developers. It's time to learn how we can help other developers to understand our code.

What are Annotations?

Variable Annotation

Return Annotation

Challenge: Annotate the Function

2. Function Arguments in Details

There are different functions: some for a specific task, some flexible. Here we will learn how to implement different functions with the help of an in-depth study of arguments and their types.

Positional Arguments

Optional Arguments

Arbitrary Arguments (*args)

Arbitrary Keyword Arguments (**kwargs)

Challenge: Snake and Sum

3. Error Handling

Caught an error? This is normal. There is no programmer who prevented errors in the program. Here we will learn how to handle errors, and we will also learn how to use them for good.

What are Errors?

Detailed except

Challenge: Safely Auth

4. Virtual Environment

Virtual Environment (venv) is an isolated development environment that helps projects to isolate their interpreter and modules. It's essential for every developer to learn how to use venv, so let's get started.

What is Virtual Environment?

Creating a Virtual Environment

Project Requirements

Virtual Environment in IDE: PyCharm

Virtual Environment in IDE: VS Code

Зміст курсу

Mastering Python: Annotations, Errors and Environment

Mastering Python: Annotations, Errors and Environment

Challenge: Safely Auth

Note

These comments help you find the code that needs to be modified:
========== Modify code below ==========
========== Modify code above ==========

Завдання

Swipe to show code editor

You have implemented the login() function, which raises errors. Implement the safely_auth() function that uses the login() function and catches errors.

Create a code block to track errors (mention the keyword).
Call the login() function in the error tracking block.
Catch the TypeError and save its info inside the error variable.
Print the error variable (error info) in the console.
Catch the ValueError and save its info inside the error variable.

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 3. Розділ 6

toggle bottom row

Challenge: Safely Auth

Note

These comments help you find the code that needs to be modified:
========== Modify code below ==========
========== Modify code above ==========

Завдання

Swipe to show code editor

You have implemented the login() function, which raises errors. Implement the safely_auth() function that uses the login() function and catches errors.

Create a code block to track errors (mention the keyword).
Call the login() function in the error tracking block.
Catch the TypeError and save its info inside the error variable.
Print the error variable (error info) in the console.
Catch the ValueError and save its info inside the error variable.

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 3. Розділ 6

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

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